2551887870 has 32 divisors (see below), whose sum is σ = 6999464448. Its totient is φ = 583288608.

The previous prime is 2551887869. The next prime is 2551887887. The reversal of 2551887870 is 787881552.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6075714 + ... + 6076133.

It is an arithmetic number, because the mean of its divisors is an integer number (218733264).

Almost surely, 2^2551887870 is an apocalyptic number.

2551887870 is an abundant number, since it is smaller than the sum of its proper divisors (4447576578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2551887870 is a wasteful number, since it uses less digits than its factorization.

2551887870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12151864.

The product of its (nonzero) digits is 1254400, while the sum is 51.

The square root of 2551887870 is about 50516.2139317665. The cubic root of 2551887870 is about 1366.5342755620.

The spelling of 2551887870 in words is "two billion, five hundred fifty-one million, eight hundred eighty-seven thousand, eight hundred seventy".